Additional maintenance procedures
DS1 CPE loopback jack (T1 only)
362
Maintenance Procedures
December 2003
Figure 108: Network Interface at Extended Demarcation Point (Smart Jack inaccessible)
Figure notes
1
Span Section 1
6
Loopback Jack
2
Span Section 2
7
“Dumb” Block (Extended Demarcation)
3
Span Section 3
8
Network Interface Smart Jack
4
120A2 (or later) Integrated
Channel Service Unit (ICSU)
9
Interface Termination or Fiber MUX
5
RJ-48 to Network Interface (up
to 1000 Feet) (305 m)
10
Central Office
Summary of Contents for CMC1
Page 1: ...Maintenance Procedures 555 245 103 Issue 1 1 December 2003 ...
Page 14: ...Contents 14 Maintenance Procedures December 2003 ...
Page 416: ...Additional maintenance procedures IP Telephones 416 Maintenance Procedures December 2003 ...
Page 426: ...Index X 426 Maintenance Procedures December 2003 ...